<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download"/>
          <a :href="'/static/01.xlsx'">点击下载模版</a>
        </el-tag>

      </el-form-item>

      <el-form-item label="选择Excel">
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API+'/eduservice/edu-subject/saveSubject'"
          name="file"
          accept="application/vnd.ms-excel">
          <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
          <el-button
            :loading="loading"
            style="margin-left: 10px;"
            size="small"
            type="success"
            @click="submitUpload">上传到服务器</el-button>
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>

    export default {
        data(){
            return {
                BASE_API: process.env.BASE_API, // 接口API地址
                importBtnDisabled: false, // 按钮是否禁用,
                loading: false,
            }
        },
        methods:{
            //上传功能
            submitUpload(){

                this .loading = true;
                this.importBtnDisabled = true;
                // js: document.getElementById("upload").submit()
                this.$refs.upload.submit()
            },
            //上传成功方法
            fileUploadSuccess(response){
                this .loading = false;
                this.importBtnDisabled = false;
                this.$message({
                    type:"success",
                    message:"上传成功"
                })
                this.$router.push({path:"/edu/subject/list"})
            },
            //上传失败方法
            fileUploadError(){
                this .loading = false;
                this.importBtnDisabled = false;
                this.$message({
                    type: 'error',
                    message: '添加课程分类失败'
                })
            }
        },
        created(){

        }
    }

</script>
<style scoped>

</style>